/**
 * Copyright 2012 Meruvian
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0 
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.meruvian.yama.actions.model;

import java.util.HashMap;

/**
 * @author Dian Aditya
 * 
 */
public class DefaultModelParam extends HashMap<String, Object> implements
		ModelParam {

	public DefaultModelParam() {
		put("id", "");
	}

	public <T> T get(String paramName, Class<T> type) {
		Object o = get(paramName);
		try {
			return (T) o;
		} catch (ClassCastException e) {
			return null;
		}
	}

	public String getString(String paramName) {
		Object o = get(paramName);

		if (o == null)
			return null;

		if (o.getClass().isArray()) {
			return ((Object[]) o).length == 1 ? ((Object[]) o)[0] + "" : o + "";
		}

		return o + "";
	}

	public String getParameterId() {
		return getString("id");
	}

}
